Oversized Knit Vest with Poplin Sleeves 3.1 Phillip Lim Utility fabric mix Poplin Vest Cotton Poplin Utility Shirt Dress Banana Republic Duxbak Vintage Cotton Upland Poplin Fabric Fishing Vest OLDS Brunello Cucinelli Herbarium Embroidered Poplin Vest Neiman Marcus. Utility Vest Fabric Mix Poplin is reinforced with woven tapes along all the raw edges. A wider herringbone tape is placed across the chest and the back panel. This vest offers three roomy flap pockets at the front, created with a woven tab and Velcro closure. Also those edges are finished with tape. Ventilation is created at the upper back panel, where a mesh fabric is set. The inside shows an A shape woven tape construction for reinforcement.